<?php defined('BASEPATH') || exit('No direct script access allowed'); ?>

CRITICAL - 2018-09-11 02:18:17 --> Cannot call constructor
#0 /var/www/html/ci4/application/Controllers/Home.php(6): App\Controllers\Application->__construct()
#1 /var/www/html/ci4/system/CodeIgniter.php(782): App\Controllers\Home->__construct()
#2 /var/www/html/ci4/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#3 /var/www/html/ci4/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /var/www/html/ci4/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
CRITICAL - 2018-09-11 02:19:48 --> Access denied for user ''@'localhost' (using password: NO)
#0 /var/www/html/ci4/system/Database/MySQLi/Connection.php(177): mysqli->real_connect('localhost', '', '', '', 3306, '', 0)
#1 /var/www/html/ci4/system/Database/BaseConnection.php(369): CodeIgniter\Database\MySQLi\Connection->connect(false)
#2 /var/www/html/ci4/application/Controllers/Application.php(35): CodeIgniter\Database\BaseConnection->initialize()
#3 /var/www/html/ci4/application/Controllers/User.php(6): App\Controllers\Application->__construct()
#4 /var/www/html/ci4/system/CodeIgniter.php(782): App\Controllers\User->__construct()
#5 /var/www/html/ci4/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#6 /var/www/html/ci4/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#7 /var/www/html/ci4/public/index.php(37): CodeIgniter\CodeIgniter->run()
#8 {main}
CRITICAL - 2018-09-11 15:46:41 --> Table 'exam./home/joe/program/web/exam/writable/session' doesn't exist
#0 /home/joe/program/web/exam/system/Database/MySQLi/Connection.php(312): mysqli->query('SELECT `data`\nF...')
#1 /home/joe/program/web/exam/system/Database/BaseConnection.php(704): CodeIgniter\Database\MySQLi\Connection->execute('SELECT `data`\nF...')
#2 /home/joe/program/web/exam/system/Database/BaseConnection.php(626): CodeIgniter\Database\BaseConnection->simpleQuery('SELECT `data`\nF...')
#3 /home/joe/program/web/exam/system/Database/BaseBuilder.php(1384): CodeIgniter\Database\BaseConnection->query('SELECT `data`\nF...', Array)
#4 /home/joe/program/web/exam/system/Session/Handlers/DatabaseHandler.php(173): CodeIgniter\Database\BaseBuilder->get()
#5 [internal function]: CodeIgniter\Session\Handlers\DatabaseHandler->read('070d5cd9d0f92e6...')
#6 /home/joe/program/web/exam/system/Session/Session.php(960): session_start()
#7 /home/joe/program/web/exam/system/Session/Session.php(218): CodeIgniter\Session\Session->startSession()
#8 /home/joe/program/web/exam/system/Config/Services.php(687): CodeIgniter\Session\Session->start()
#9 /home/joe/program/web/exam/system/Config/BaseService.php(114): CodeIgniter\Config\Services::session(Object(Config\App), false)
#10 /home/joe/program/web/exam/system/Config/Services.php(668): CodeIgniter\Config\BaseService::getSharedInstance('session', Object(Config\App))
#11 /home/joe/program/web/exam/application/Controllers/Application.php(41): CodeIgniter\Config\Services::session(Object(Config\App))
#12 /home/joe/program/web/exam/application/Controllers/User.php(6): App\Controllers\Application->__construct()
#13 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\User->__construct()
#14 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#15 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#16 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#17 {main}
CRITICAL - 2018-09-11 15:47:53 --> Table 'exam.session' doesn't exist
#0 /home/joe/program/web/exam/system/Database/MySQLi/Connection.php(312): mysqli->query('SELECT `data`\nF...')
#1 /home/joe/program/web/exam/system/Database/BaseConnection.php(704): CodeIgniter\Database\MySQLi\Connection->execute('SELECT `data`\nF...')
#2 /home/joe/program/web/exam/system/Database/BaseConnection.php(626): CodeIgniter\Database\BaseConnection->simpleQuery('SELECT `data`\nF...')
#3 /home/joe/program/web/exam/system/Database/BaseBuilder.php(1384): CodeIgniter\Database\BaseConnection->query('SELECT `data`\nF...', Array)
#4 /home/joe/program/web/exam/system/Session/Handlers/DatabaseHandler.php(173): CodeIgniter\Database\BaseBuilder->get()
#5 [internal function]: CodeIgniter\Session\Handlers\DatabaseHandler->read('j2cqe8quhsbkrak...')
#6 /home/joe/program/web/exam/system/Session/Session.php(960): session_start()
#7 /home/joe/program/web/exam/system/Session/Session.php(218): CodeIgniter\Session\Session->startSession()
#8 /home/joe/program/web/exam/system/Config/Services.php(687): CodeIgniter\Session\Session->start()
#9 /home/joe/program/web/exam/system/Config/BaseService.php(114): CodeIgniter\Config\Services::session(Object(Config\App), false)
#10 /home/joe/program/web/exam/system/Config/Services.php(668): CodeIgniter\Config\BaseService::getSharedInstance('session', Object(Config\App))
#11 /home/joe/program/web/exam/application/Controllers/Application.php(41): CodeIgniter\Config\Services::session(Object(Config\App))
#12 /home/joe/program/web/exam/application/Controllers/User.php(6): App\Controllers\Application->__construct()
#13 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\User->__construct()
#14 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#15 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#16 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#17 {main}
CRITICAL - 2018-09-11 16:14:28 --> Undefined variable: user
#0 /home/joe/program/web/exam/application/Views/default.php(181): CodeIgniter\Debug\Exceptions->errorHandler(8, 'Undefined varia...', '/home/joe/progr...', 181, Array)
#1 /home/joe/program/web/exam/system/View/View.php(209): include('/home/joe/progr...')
#2 /home/joe/program/web/exam/system/Common.php(139): CodeIgniter\View\View->render('default', Array, NULL)
#3 /home/joe/program/web/exam/application/Controllers/Application.php(68): view('default', Array)
#4 /home/joe/program/web/exam/application/Controllers/Admin/Home.php(20): App\Controllers\Application->render('admin/home', '\xE6\xA6\x82\xE8\xA7\x88')
#5 /home/joe/program/web/exam/system/CodeIgniter.php(807): App\Controllers\Admin\Home->index()
#6 /home/joe/program/web/exam/system/CodeIgniter.php(305): CodeIgniter\CodeIgniter->runController(Object(App\Controllers\Admin\Home))
#7 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#8 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#9 {main}
CRITICAL - 2018-09-11 16:35:55 --> Undefined variable: params
#0 /home/joe/program/web/exam/application/Controllers/Home.php(6): CodeIgniter\Debug\Exceptions->errorHandler(8, 'Undefined varia...', '/home/joe/progr...', 6, Array)
#1 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\Home->__construct()
#2 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#3 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
CRITICAL - 2018-09-11 16:36:15 --> Undefined variable: params
#0 /home/joe/program/web/exam/application/Controllers/Home.php(6): CodeIgniter\Debug\Exceptions->errorHandler(8, 'Undefined varia...', '/home/joe/progr...', 6, Array)
#1 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\Home->__construct()
#2 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#3 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
CRITICAL - 2018-09-11 16:36:18 --> Undefined variable: params
#0 /home/joe/program/web/exam/application/Controllers/Home.php(6): CodeIgniter\Debug\Exceptions->errorHandler(8, 'Undefined varia...', '/home/joe/progr...', 6, Array)
#1 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\Home->__construct()
#2 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#3 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
CRITICAL - 2018-09-11 16:36:59 --> Cannot call constructor
#0 /home/joe/program/web/exam/application/Controllers/Home.php(6): App\Controllers\Application->__construct()
#1 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\Home->__construct()
#2 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#3 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
CRITICAL - 2018-09-11 17:02:17 --> Cannot call constructor
#0 /home/joe/program/web/exam/application/Controllers/User.php(6): App\Controllers\Application->__construct()
#1 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\User->__construct()
#2 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#3 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
CRITICAL - 2018-09-11 17:02:50 --> Cannot call constructor
#0 /home/joe/program/web/exam/application/Controllers/User.php(6): App\Controllers\Application->__construct()
#1 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\User->__construct()
#2 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#3 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
CRITICAL - 2018-09-11 17:03:10 --> Call to a member function doLogin() on null
#0 /home/joe/program/web/exam/system/CodeIgniter.php(807): App\Controllers\User->login()
#1 /home/joe/program/web/exam/system/CodeIgniter.php(305): CodeIgniter\CodeIgniter->runController(Object(App\Controllers\User))
#2 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#3 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#4 {main}
CRITICAL - 2018-09-11 17:04:48 --> Cannot call constructor
#0 /home/joe/program/web/exam/application/Controllers/User.php(6): App\Controllers\Application->__construct()
#1 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\User->__construct()
#2 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#3 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
CRITICAL - 2018-09-11 17:20:06 --> Call to undefined function CodeIgniter\Database\mb_substr()
#0 /home/joe/program/web/exam/system/Session/Handlers/DatabaseHandler.php(165): CodeIgniter\Database\BaseBuilder->select(Array)
#1 [internal function]: CodeIgniter\Session\Handlers\DatabaseHandler->read('p7qc0iravmjbbp7...')
#2 /home/joe/program/web/exam/system/Session/Session.php(960): session_start()
#3 /home/joe/program/web/exam/system/Session/Session.php(218): CodeIgniter\Session\Session->startSession()
#4 /home/joe/program/web/exam/system/Config/Services.php(687): CodeIgniter\Session\Session->start()
#5 /home/joe/program/web/exam/system/Config/BaseService.php(114): CodeIgniter\Config\Services::session(Object(Config\App), false)
#6 /home/joe/program/web/exam/system/Config/Services.php(668): CodeIgniter\Config\BaseService::getSharedInstance('session', NULL)
#7 /home/joe/program/web/exam/system/Common.php(311): CodeIgniter\Config\Services::session()
#8 /home/joe/program/web/exam/application/Controllers/Application.php(41): session()
#9 /home/joe/program/web/exam/application/Controllers/User.php(6): App\Controllers\Application->__construct()
#10 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\User->__construct()
#11 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#12 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#13 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#14 {main}
CRITICAL - 2018-09-11 17:21:04 --> Call to undefined function CodeIgniter\Database\mb_substr()
#0 /home/joe/program/web/exam/system/Session/Handlers/DatabaseHandler.php(165): CodeIgniter\Database\BaseBuilder->select(Array)
#1 [internal function]: CodeIgniter\Session\Handlers\DatabaseHandler->read('p7qc0iravmjbbp7...')
#2 /home/joe/program/web/exam/system/Session/Session.php(960): session_start()
#3 /home/joe/program/web/exam/system/Session/Session.php(218): CodeIgniter\Session\Session->startSession()
#4 /home/joe/program/web/exam/system/Config/Services.php(687): CodeIgniter\Session\Session->start()
#5 /home/joe/program/web/exam/system/Config/BaseService.php(114): CodeIgniter\Config\Services::session(Object(Config\App), false)
#6 /home/joe/program/web/exam/system/Config/Services.php(668): CodeIgniter\Config\BaseService::getSharedInstance('session', NULL)
#7 /home/joe/program/web/exam/system/Common.php(311): CodeIgniter\Config\Services::session()
#8 /home/joe/program/web/exam/application/Controllers/Application.php(41): session()
#9 /home/joe/program/web/exam/application/Controllers/User.php(6): App\Controllers\Application->__construct()
#10 /home/joe/program/web/exam/system/CodeIgniter.php(782): App\Controllers\User->__construct()
#11 /home/joe/program/web/exam/system/CodeIgniter.php(300): CodeIgniter\CodeIgniter->createController()
#12 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#13 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#14 {main}
CRITICAL - 2018-09-11 17:22:43 --> Undefined variable: _SESSION
#0 /home/joe/program/web/exam/application/Controllers/Home.php(10): CodeIgniter\Debug\Exceptions->errorHandler(8, 'Undefined varia...', '/home/joe/progr...', 10, Array)
#1 /home/joe/program/web/exam/system/CodeIgniter.php(807): App\Controllers\Home->index()
#2 /home/joe/program/web/exam/system/CodeIgniter.php(305): CodeIgniter\CodeIgniter->runController(Object(App\Controllers\Home))
#3 /home/joe/program/web/exam/system/CodeIgniter.php(220): CodeIgniter\CodeIgniter->handleRequest(NULL, Object(Config\Cache), false)
#4 /home/joe/program/web/exam/public/index.php(37): CodeIgniter\CodeIgniter->run()
#5 {main}
